Air compressor cooling system

Abstract

The present application provides an air compressor cooling system, the air compressor includes a compressor and an oil-gas separator, the air compressor cooling system includes an oil circuit heat exchanger, the oil-gas mixture inlet of the oil-gas separator is connected to the air outlet of the compressor, and the oil outlet of the oil-gas separator is connected to the oil inlet of the oil circuit heat exchanger. The air compressor cooling system also includes a heat dissipation component and a drive motor. The heat dissipation component is used to cool the oil in the oil circuit heat exchanger. The drive motor is connected to the heat dissipation component to drive the heat dissipation component to move, the drive motor includes an oil cooling component, a cooling oil channel is formed on the oil cooling component, the oil inlet of the cooling oil channel is connected to the oil outlet of the oil circuit heat exchanger, and the oil outlet of the cooling oil channel is connected to the oil inlet of the compressor. The air compressor cooling system can realize that the oil of the air compressor cooling system itself flows into the cooling oil channel without the need to establish an additional oil circuit circulation, and the heat of the drive motor is taken away in the form of heat conduction, so as to increase the service life of the drive motor.

Description

Technical Field

[0001] The present application relates to the technical field of air compressors, and in particular to an air compressor cooling system. Background Art

[0002] An air compressor is a device used to compress gas. The oil heat exchanger in the air compressor cooling system often uses a radiator for heat dissipation, such as a cooling fan. The radiator is generally driven by the radiator's drive motor. The radiator usually introduces natural wind into the air compressor to cool the radiator's drive motor. The cooling effect is limited, and the radiator drive motor is prone to high temperature, causing alarms or even shutdowns. At present, in order to solve the problem of temperature rise of the radiator drive motor, the heat generated by the motor is usually reduced by increasing the size of the motor, which greatly increases the cost of the air compressor cooling system and increases the space occupied by the air compressor cooling system. Utility Model Content

[0003] In response to the above-mentioned technical problems existing in the prior art, the present application provides an air compressor cooling system, which can realize the use of the oil of the air compressor cooling system itself to flow into the cooling oil channel of the drive motor connected to the heat dissipation component without the need to establish an additional oil circuit circulation, thereby taking away the heat of the drive motor in the form of heat conduction, reducing the temperature rise of the drive motor, and thus increasing its service life, without the need for additional cooling equipment.

[0004] The embodiment of the present application provides an air compressor cooling system, the air compressor includes a compressor and an oil-gas separator, the air compressor cooling system includes an oil circuit heat exchanger, the oil-gas mixture inlet of the oil-gas separator is connected to the air outlet of the compressor, the oil outlet of the oil-gas separator is connected to the oil inlet of the oil circuit heat exchanger, the oil outlet of the oil circuit heat exchanger is connected to the oil inlet of the compressor, and the air compressor cooling system further includes:

[0005] A heat dissipation component, the heat dissipation component is used to cool the oil in the oil circuit heat exchanger,

[0006] A drive motor is connected to the heat dissipation assembly and is used to drive the heat dissipation assembly to move. The drive motor includes an oil cooling component. A cooling oil channel is formed on the oil cooling component. The oil inlet of the cooling oil channel is connected to the oil outlet of the oil circuit heat exchanger, and the oil outlet of the cooling oil channel is connected to the oil inlet of the compressor.

[0007] In some embodiments, the air compressor cooling system also includes a temperature control valve, the oil outlet of the oil-gas separator is connected to the oil inlet of the oil circuit heat exchanger through the temperature control valve, the oil outlet of the oil circuit heat exchanger is connected to the oil inlet of the temperature control valve through a first pipe, and the oil inlet of the cooling oil channel is connected to the first pipe through a second pipe.

[0008] In some embodiments, the drive motor includes a motor body, and the cooling oil channel is configured as a multi-circumventive cavity, and the multi-circumventive cavity covers a side of the oil cooling component facing the motor body.

[0009] In some embodiments, the multi-circumferential cavity is constructed so that oil enters through the oil inlet of the cooling oil channel, flows in a direction away from the oil outlet of the cooling oil channel, and then flows in a circuitous manner to the direction of the oil outlet of the cooling oil channel.

[0010] In some embodiments, the drive motor includes a motor body, the oil cooling component includes a rear end cover plate mounted on the motor body, and the cooling oil channel is formed on a surface of the rear end cover plate facing the motor body.

[0011] In some embodiments, the oil inlet of the cooling oil channel is disposed on the rear end cover plate, and the oil inlet of the cooling oil channel is oriented in a direction perpendicular to the plate surface of the rear end cover plate.

[0012] In some embodiments, the rear end cover plate extends in a direction perpendicular to its plate surface to form a connecting portion, and the oil outlet of the cooling oil channel is arranged on the connecting portion.

[0013] In some embodiments, the air compressor cooling system further includes an oil filter, and the oil outlet of the oil heat exchanger is connected to the oil inlet of the compressor through the oil filter.

[0014] In some embodiments, the oil outlet of the temperature control valve is connected to the oil inlet of the oil filter through a third pipe, and the oil outlet of the cooling oil channel is connected to the third pipe through a fourth pipe; and / or, the oil outlet of the cooling oil channel is directly connected to the oil inlet of the compressor.

[0015] In some embodiments, the heat dissipation component is configured as a heat dissipation fan, and the drive motor is configured as a fan motor for driving the heat dissipation fan to rotate.

[0016] In some embodiments, the cooling fan is installed on the top or below the oil heat exchanger.

[0017] In some embodiments, the drive motor further comprises a motor body and a bearing assembly sleeved on an output shaft of the motor body, and the oil cooling component is provided with a bearing chamber for mounting the bearing assembly.

[0018] In some embodiments, the oil cooling component further includes heat dissipation ribs, and the heat dissipation ribs are located outside the bearing chamber.

[0019] Compared with the prior art, the beneficial effects of the embodiments of the present application are as follows: the oil inlet of the cooling oil channel of the present application is connected to the oil outlet of the oil circuit heat exchanger, and the oil outlet of the cooling oil channel is connected to the oil inlet of the compressor, so that the oil of the air compressor cooling system itself can be used to flow into the cooling oil channel without the need to establish an additional oil circuit circulation, and the heat of the drive motor can be taken away in the form of heat conduction, so that the drive motor can operate stably in a high temperature environment, effectively solving the problem of poor heat dissipation of the drive motor, thereby increasing the service life of the heat dissipation component, and the above-mentioned structure has low setting cost and does not require additional cooling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the description and claims, serve to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0021] Figure 1 This is a first structural block diagram of the air compressor cooling system of an embodiment of the present application;

[0022] Figure 2 This is a second structural block diagram of the air compressor cooling system of the embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the structure of the oil cooling component of the air compressor cooling system of the embodiment of the present application;

[0024] Figure 4 This is a schematic structural diagram of the rear end cover plate of the oil cooling component of the air compressor cooling system of the embodiment of the present application.

[0025] The components indicated by the reference numerals in the figures are:

[0026] 1. Compressor; 2. Oil-gas separator; 3. Oil circuit heat exchanger; 4. Temperature control valve; 5. Drive motor; 6. Oil cooling component; 61. Heat dissipation ribs; 62. Rear end cover; 63. Connection part; 64. Bearing chamber; 65. Oil inlet of cooling oil channel; 66. Oil outlet of cooling oil channel; 7. Oil filter; 8. First pipeline; 9. Second pipeline; 10. Third pipeline; 11. Fourth pipeline; 12. Heat dissipation component. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific implementation examples. The embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and specific implementation examples, but are not intended to limit the present application.

[0028] The words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] In the present application, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0030] All terms (including technical terms or scientific terms) used in this application have the same meaning as those understood by ordinary technicians in the field to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0031] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0032] The present application embodiment provides an air compressor cooling system, which is applied to an air compressor. Figure 1 As shown, the air compressor includes a compressor 1 and an oil-gas separator 2, and the air compressor cooling system includes an oil circuit heat exchanger 3. The oil-gas mixture inlet of the oil-gas separator 2 is connected to the air outlet of the compressor 1, the oil outlet of the oil-gas separator 2 is connected to the oil inlet of the oil circuit heat exchanger 3, and the oil outlet of the oil circuit heat exchanger 3 is connected to the oil inlet of the compressor 1.

[0033] Continue to combine Figure 1 The air compressor cooling system further includes a heat dissipation component 12 and a drive motor 5. The heat dissipation component 12 is used to cool the oil in the oil heat exchanger 3. The drive motor 5 is connected to the heat dissipation component 12 and is used to drive the heat dissipation component 12 to move. The drive motor 5 includes an oil cooling component 6, and a cooling oil channel is formed on the oil cooling component 6. The oil inlet 65 of the cooling oil channel is connected to the oil outlet of the oil heat exchanger 3, and the oil outlet 66 of the cooling oil channel is connected to the oil inlet of the compressor 1. Figure 1 The arrow direction shown in the figure is the flow direction of the oil.

[0034] The oil-gas mixture discharged from the compressor 1 is discharged into the oil-gas separator 2. After separation by the oil-gas separator 2, the generated oil will enter the oil heat exchanger 3. After the oil heat exchanger 3 cools the oil, it is discharged outward and flows back to the oil inlet of the compressor 1 to cool and lubricate the compressor 1. The heat dissipation component 12 can be understood as being arranged close to the oil heat exchanger 3. The heat dissipation component 12 can cool the oil in the oil heat exchanger 3, and can specifically cool the oil by air cooling, liquid cooling, etc.

[0035] Optionally, the oil cooling component 6 may be made of a heat-conducting material, which can quickly conduct the heat generated by the drive motor 5 to the cooling oil channel, so as to effectively dissipate the heat of the drive motor 5 through the low-temperature oil in the cooling oil channel. Specifically, the oil cooling component 6 may be made of a metal material with good thermal conductivity, such as aluminum.

[0036] Optionally, the cooling oil channel of the oil cooling component 6 may be manufactured by brazing process or other processes, which is not specifically limited in the present application.

[0037] like Figure 1 to Figure 2 As shown, the oil inlet 65 of the cooling oil channel of the present application is connected to the oil outlet of the oil circuit heat exchanger 3, and the oil outlet 66 of the cooling oil channel is connected to the oil inlet of the compressor 1. This can achieve the effect that the oil of the air compressor cooling system itself flows into the cooling oil channel of the drive motor 5 connected to the heat dissipation component without the need to establish an additional oil circuit circulation, and the heat of the drive motor 5 is taken away in the form of heat conduction, thereby reducing the temperature rise of the drive motor 5, so that the drive motor 5 can operate stably in a high temperature environment, effectively solving the problem of poor heat dissipation of the drive motor 5, thereby increasing the service life of the heat dissipation component 12, and the above-mentioned structure has low setting cost and does not require additional cooling equipment.

[0038] In some embodiments, Figure 1 As shown, the air compressor cooling system also includes a temperature control valve 4, the oil outlet of the oil-gas separator 2 is connected to the oil inlet of the oil circuit heat exchanger 3 through the temperature control valve 4, the oil outlet of the oil circuit heat exchanger 3 is connected to the oil inlet of the temperature control valve 4 through the first pipeline 8, and the oil inlet 65 of the cooling oil channel is connected to the first pipeline 8 through the second pipeline 9.

[0039] In this way, the oil discharged from the oil-gas separator 2 can pass through the temperature control valve 4 and then be discharged to the oil in the oil circuit heat exchanger 3, or the oil discharged from the oil circuit heat exchanger 3 can pass through the temperature control valve 4 for temperature judgment and adjustment and then be discharged to the oil filter 7, so that the temperature of the oil can be maintained within a reasonable range, so that the system can operate efficiently.

[0040] The temperature control valve 4 is used to determine whether the temperature of the oil entering the temperature control valve 4 from the oil outlet of the oil-gas separator 2 is greater than the preset temperature. If it is greater than the preset temperature, it is cooled by the oil circuit heat exchanger 3; if it is less than or equal to the preset temperature, it does not pass through the oil circuit heat exchanger 3 but directly enters the oil filter 7 for filtration and then returns to the compressor 1.

[0041] The above-mentioned temperature control valve 4 may include a first oil inlet, a second oil inlet, a first oil outlet and a second oil outlet. The first oil inlet of the temperature control valve 4 is connected to the oil outlet of the oil-gas separator 2, the second oil inlet of the temperature control valve 4 is connected to the oil outlet of the oil circuit heat exchanger 3, the first oil outlet of the temperature control valve 4 is connected to the oil inlet of the oil circuit heat exchanger 3, and the second oil outlet of the temperature control valve 4 is connected to the oil filter 7.

[0042] In some embodiments, the drive motor 5 includes a motor body, and the cooling oil channel is constructed as a multi-circumventive cavity, and the multi-circumventive cavity covers a side of the oil cooling component 6 facing the motor body.

[0043] In this way, the oil can fully flow through the multiple circuitous cavities in the oil cooling component 6 and then be discharged, thereby taking away as much heat generated by the operation of the motor body as possible.

[0044] The motor body can be understood as an electrical device that uses an energized coil to generate a rotating magnetic field and acts on the rotor to form a magneto-electrical power rotation torque. The output shaft of the motor body can drive the heat dissipation component 12 to move. The motor body generates a lot of heat when it is working, and the motor body can be effectively cooled by accommodating oil in multiple circuitous cavities.

[0045] Optionally, the cooling oil channel can be laid out on the oil cooling component 6 in a flat manner, that is, the cooling oil channel is laid on the side surface of the oil cooling component 6 facing the motor body to increase the contact area between the cooling oil channel and the motor body and improve the cooling efficiency.

[0046] In some embodiments, Figure 3 and Figure 4 As shown, the multi-circumferential cavity structure allows the oil to enter through the oil inlet 65 of the cooling oil channel, flow in a direction away from the oil outlet 66 of the cooling oil channel, and then flow in a circuitous manner to the direction of the oil outlet 66 of the cooling oil channel. Figure 3 and Figure 4 The arrow direction shown in is the flow direction of the oil in the cooling oil channel.

[0047] In this way, the flow direction of the oil in the cooling oil channel can be controlled through multiple circuitous channels, so that the oil can flow to various places in the cooling oil channel as much as possible, thereby improving the efficiency of cooling and dissipating heat for the drive motor 5.

[0048] Optionally, the oil inlet 65 of the cooling oil channel may be disposed near the middle of the oil cooling component 6 , and the oil outlet 66 of the cooling oil channel may be disposed near the outer edge of the oil cooling component 6 .

[0049] In some embodiments, Figure 3 and Figure 4 As shown, the driving motor 5 includes a motor body, and the oil cooling component 6 includes a rear end cover plate 62 mounted on the motor body, and a cooling oil channel is formed on a surface of the rear end cover plate 62 facing the motor body.

[0050] In this way, the motor body can be installed and the heat of the motor body can be effectively dissipated through the oil cooling component 6, so that the overall structural design of the drive motor 5 is more compact and reasonable.

[0051] In some embodiments, Figure 3 and Figure 4 As shown, the oil inlet 65 of the cooling oil channel is arranged on the rear end cover plate 62, and the direction of the oil inlet 65 of the cooling oil channel is perpendicular to the plate surface of the rear end cover plate 62. The oil inlet 65 of the cooling oil channel is reasonably designed to allow the oil to quickly enter the cooling oil channel.

[0052] Optionally, the rear end cover plate 62 has a through hole for the output shaft of the motor body to pass through, and the oil inlet 65 of the cooling oil channel can be located at the through hole and communicate with the through hole.

[0053] In some embodiments, Figure 3 and Figure 4 As shown, the rear end cover plate 62 extends in a direction perpendicular to its plate surface to form a connecting portion 63, and the oil outlet 66 of the cooling oil channel is provided on the connecting portion 63. The oil outlet 66 of the cooling oil channel is provided on the connecting portion 63, and the oil inlet 65 of the cooling oil channel is provided on the rear end cover plate 62, so that the oil can fully flow in the cooling oil channel on the rear end cover plate 62 and then be discharged through the oil outlet 66 of the cooling oil channel on the connecting portion 63.

[0054] The oil inlet 65 of the cooling oil channel and the oil outlet 66 of the cooling oil channel have different directions. Specifically, the oil inlet 65 of the cooling oil channel and the oil outlet 66 of the cooling oil channel may be oriented in perpendicular directions to each other.

[0055] Optionally, a plurality of connection holes are formed on the connection portion 63 so that the rear end cover plate 62 can be assembled and disassembled through the connection holes.

[0056] In some embodiments, Figure 1 As shown, the air compressor cooling system also includes an oil filter 7, and the oil outlet of the oil heat exchanger 3 is connected to the oil inlet of the compressor 1 through the oil filter 7. By setting the oil filter 7, the oil discharged from the oil heat exchanger 3 can be filtered to filter out impurities in the oil, so that the clean oil after filtration is discharged into the compressor 1, which can ensure the stable operation of the compressor 1.

[0057] Optionally, continue as Figure 1As shown, the oil outlet 66 of the cooling oil channel can also be connected to the oil inlet of the compressor 1 through the oil filter 7.

[0058] Optionally, the oil filter 7 may have one oil inlet or multiple oil inlets. When the oil circuit has one oil inlet, the oil outlet of the oil circuit heat exchanger 3 and the oil outlet 66 of the cooling oil channel may be mixed and then discharged to the oil inlet of the oil circuit, so that the oil temperature of the oil discharged from the oil outlet 66 of the cooling oil channel to the oil filter 7 can be reduced, and the oil used to cool the drive motor 5 is prevented from being directly discharged to the oil filter 7 when the temperature is too high.

[0059] In some embodiments, Figure 1 As shown, the oil outlet of the temperature control valve 4 is connected to the oil inlet of the oil filter 7 through the third pipe 10, and the oil outlet 66 of the cooling oil channel is connected to the third pipe 10 through the fourth pipe 11; and / or, the oil outlet 66 of the cooling oil channel is directly connected to the oil inlet of the compressor 1.

[0060] In this way, the oil outlet 66 of the cooling oil channel can enter the third pipeline 10 through the fourth pipeline 11, and mix with the oil discharged by the temperature control valve 4 in the third pipeline 10 before being discharged to the oil filter 7, so that the temperature of the oil entering the oil filter 7 will not be too high, and the oil circuit design is more reasonable, or the oil outlet 66 of the cooling oil channel can be directly connected to the oil inlet of the compressor 1 to be directly discharged into the compressor 1, making the oil circuit design simpler; of course, both routes can be set at the same time - that is, part of the oil discharged through the oil outlet 66 of the cooling oil channel passes through the third pipeline 10 and is mixed with the oil discharged after being cooled by the oil circuit heat exchanger 3, and then returns to the compressor 1 after being filtered by the oil filter, while the other part is directly discharged into the compressor 1.

[0061] like Figure 1 and Figure 2 As shown, Figure 1 The oil outlet 66 of the cooling oil passage shown in FIG. 1 enters the third pipe 10 through the fourth pipe 11, mixes with the oil discharged from the temperature control valve 4 in the third pipe 10, and then is discharged to the oil filter 7; Figure 2 The oil outlet 66 of the cooling oil passage shown in FIG. 1 is directly connected to the oil inlet of the compressor 1 so as to be directly discharged into the compressor 1 .

[0062] In some embodiments, the heat dissipation component 12 is configured as a heat dissipation fan, and the drive motor 5 is configured as a fan motor for driving the heat dissipation fan to rotate. The heat dissipation fan can effectively cool the oil in the oil circuit heat exchanger 3 .

[0063] In some other embodiments, the heat dissipation component 12 may be configured as a heat sink, and the heat sink may be made of a metal material to cool the oil in the oil heat exchanger 3 .

[0064] In some embodiments, the cooling fan is installed on the top or below the oil heat exchanger 3. Such a design is compact, and the cooling fan can efficiently cool the oil in the oil heat exchanger 3.

[0065] In some embodiments, Figure 3 and Figure 4 As shown, the driving motor 5 further includes a motor body and a bearing assembly sleeved on the output shaft of the motor body, and the oil cooling component 6 is provided with a bearing chamber 64 for installing the bearing assembly.

[0066] In this way, the bearing assembly of the drive motor 5 and the output shaft of the motor body can be effectively cooled through the cooling oil passage of the oil cooling component 6, so as to increase the service life of the drive motor 5.

[0067] Optionally, a mounting ring may be protruded from one side of the oil cooling component 6 facing the motor body, and the bearing assembly may be sleeved outside the mounting ring.

[0068] In some embodiments, Figure 3 and Figure 4 As shown, the oil cooling component 6 further includes a heat dissipation rib 61, and the heat dissipation rib 61 is located outside the bearing chamber 64. By providing the heat dissipation rib 61, the contact area between the oil cooling component 6 and the cooling oil in the cooling oil channel can be increased, thereby improving the heat transfer efficiency.

[0069] Optionally, there may be a plurality of heat dissipation ribs 61 , and the shape of the plurality of heat dissipation ribs 61 may be arc-shaped, and the plurality of arc-shaped heat dissipation ribs 61 may be arranged around the bearing chamber 64 .

[0070] The oil circulation process of the air compressor cooling system of the present application is explained below: the oil-gas mixture discharged after compression by the compressor 1 flows into the oil-gas separator 2, and the oil-gas separation is performed by the oil-gas separator 2. The separated oil will flow through the temperature control valve 4, and the temperature will be determined by the temperature control valve 4: if the oil temperature is lower than or equal to the preset temperature, the oil will be filtered through the oil filter 7 and flow directly back to the compressor 1 for cooling and lubrication. If the oil temperature is higher than the preset temperature, the discharged oil will enter the oil circuit heat exchanger 3 for cooling. After being cooled by the oil circuit heat exchanger 3, a part of the oil enters the temperature control valve 4 for temperature determination as mentioned above, and the other part enters the cooling oil channel of the drive motor 5 connected to the heat dissipation component 12. The oil entering the cooling oil channel of the drive motor 5 can effectively dissipate the heat for the drive motor 5 by fully flowing through multiple circuitous cavities, and the oil discharged from the cooling oil channel can be discharged to the oil filter 7, and then discharged to the compressor 1 after being filtered by the oil filter 7. The oil discharged from the cooling oil channel can also not pass through the oil filter 7, but be directly discharged to the compressor 1.

[0071] In addition, although exemplary embodiments have been described herein, the scope includes any and all embodiments based on the present application with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language used in the claims, and are not limited to the examples described in this specification or during the practice of the application, and the examples will be interpreted as non-exclusive.

[0072] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, those of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the application. This should not be interpreted as an intention that a disclosed feature that does not require protection is necessary for any claim. On the contrary, the subject matter of the present application may be less than all the features of a specific disclosed embodiment. Thus, the claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present application should be determined with reference to the full scope of the equivalent forms of the attached claims and these claims.

[0073] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. An air compressor cooling system, the air compressor comprises a compressor and an oil-gas separator, the air compressor cooling system comprises an oil heat exchanger, the oil-gas mixture inlet of the oil-gas separator is connected to the air outlet of the compressor, the oil outlet of the oil-gas separator is connected to the oil inlet of the oil heat exchanger, the oil outlet of the oil heat exchanger is connected to the oil inlet of the compressor, characterized in that: The air compressor cooling system also includes: A heat dissipation component, the heat dissipation component is used to cool the oil in the oil circuit heat exchanger, A drive motor is connected to the heat dissipation assembly and is used to drive the heat dissipation assembly to move. The drive motor includes an oil cooling component. A cooling oil channel is formed on the oil cooling component. The oil inlet of the cooling oil channel is connected to the oil outlet of the oil circuit heat exchanger, and the oil outlet of the cooling oil channel is connected to the oil inlet of the compressor.

2. The air compressor cooling system according to claim 1, characterized in that: The air compressor cooling system also includes a temperature control valve, the oil outlet of the oil-gas separator is connected to the oil inlet of the oil circuit heat exchanger through the temperature control valve, the oil outlet of the oil circuit heat exchanger is connected to the oil inlet of the temperature control valve through a first pipeline, and the oil inlet of the cooling oil channel is connected to the first pipeline through a second pipeline.

3. The air compressor cooling system according to claim 1, characterized in that: The drive motor comprises a motor body, and the cooling oil channel is configured as a multi-circumventive cavity, and the multi-circumventive cavity covers a side of the oil cooling component facing the motor body.

4. The air compressor cooling system according to claim 3, characterized in that: The multi-circumnavigation cavity is constructed so that oil enters through the oil inlet of the cooling oil channel, flows in a direction away from the oil outlet of the cooling oil channel, and then flows in a circuitous manner to the direction of the oil outlet of the cooling oil channel.

5. The air compressor cooling system according to claim 1, characterized in that: The driving motor comprises a motor body, the oil cooling component comprises a rear end cover plate mounted on the motor body, and the cooling oil channel is formed on a surface of the rear end cover plate facing the motor body.

6. The air compressor cooling system according to claim 5, characterized in that: The oil inlet of the cooling oil channel is arranged on the rear end cover plate, and the oil inlet of the cooling oil channel is oriented in a direction perpendicular to the plate surface of the rear end cover plate.

7. The air compressor cooling system according to claim 5 or 6, characterized in that: The rear end cover plate extends in a direction perpendicular to its plate surface to form a connecting portion, and the oil outlet of the cooling oil channel is arranged on the connecting portion.

8. The air compressor cooling system according to claim 2, characterized in that: The air compressor cooling system also includes an oil filter, and the oil outlet of the oil heat exchanger is connected to the oil inlet of the compressor through the oil filter.

9. The air compressor cooling system according to claim 8, characterized in that: The oil outlet of the temperature control valve is connected to the oil inlet of the oil filter through a third pipeline, and the oil outlet of the cooling oil channel is connected to the third pipeline through a fourth pipeline; and / or, The oil outlet of the cooling oil channel is directly connected to the oil inlet of the compressor.

10. The air compressor cooling system according to claim 1, characterized in that: The heat dissipation component is configured as a heat dissipation fan, and the driving motor is configured as a fan motor for driving the heat dissipation fan to rotate.

11. The air compressor cooling system according to claim 10, characterized in that: The cooling fan is installed on the top or below the oil circuit heat exchanger.

12. The air compressor cooling system according to claim 1, characterized in that: The driving motor further comprises a motor body and a bearing assembly sleeved on an output shaft of the motor body, and the oil cooling component is provided with a bearing chamber for mounting the bearing assembly.

13. The air compressor cooling system according to claim 12, characterized in that: The oil cooling component also includes heat dissipation ribs, and the heat dissipation ribs are located outside the bearing chamber.

Images